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Deflazacort

Phase 1

Duchenne Muscular Dystrophy | Small molecule | Neurology |PTC Therapeutics, Inc.|Last Updated: Dec 8, 2017

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials2
Total Enrollment48

FDA Designations

No designations recorded

Clinical trial landscape

Deflazacort · 6 trials · 4 indications

Phase 1 6
NCT02485431Food Effect and Bioavailability of Deflazacort Formulations in Healthy VolunteersHealthy Volunteers
COMPLETED45 Analytics
NCT02251600A Pharmacokinetic Study of Oral Deflazacort in Children and Adolescent Subjects With Duchenne Muscular DystrophyDuchenne Muscular Dystrophy
COMPLETED24 Analytics
NCT02286609A Single Dose Evaluation of the Effects of Moderate Hepatic Impairment on Deflazacort PharmacokineticsHepatic Impairment
COMPLETED16 Analytics
NCT02286622A Single Dose Evaluation of the Effects of Renal Impairment on Deflazacort PharmacokineticsRenal Impairment
COMPLETED16 Analytics
NCT02295748An Open-Label, Long-Term Extension Study to Evaluate the Safety and Tolerability DeflazacortDuchenne Muscular Dystrophy
COMPLETED24 Analytics
NCT02286635Evaluate Effects of Multiple Doses of Rifampin and Clarithromycin on the Single Dose Pharmacokinetics of DeflazacortHealthy Volunteers
COMPLETED58 Analytics
PHASE1COMPLETED
Food Effect and Bioavailability of Deflazacort Formulations in Healthy Volunteers
Healthy VolunteersUnlock trial analytics
PHASE1COMPLETED
A Pharmacokinetic Study of Oral Deflazacort in Children and Adolescent Subjects With Duchenne Muscular Dystrophy
Duchenne Muscular DystrophyUnlock trial analytics
PHASE1COMPLETED
A Single Dose Evaluation of the Effects of Moderate Hepatic Impairment on Deflazacort Pharmacokinetics
Hepatic ImpairmentUnlock trial analytics
PHASE1COMPLETED
A Single Dose Evaluation of the Effects of Renal Impairment on Deflazacort Pharmacokinetics
Renal ImpairmentUnlock trial analytics
PHASE1COMPLETED
An Open-Label, Long-Term Extension Study to Evaluate the Safety and Tolerability Deflazacort
Duchenne Muscular DystrophyUnlock trial analytics
PHASE1COMPLETED
Evaluate Effects of Multiple Doses of Rifampin and Clarithromycin on the Single Dose Pharmacokinetics of Deflazacort
Healthy VolunteersUnlock trial analytics

Study Endpoints

Primary Endpoints

Pharmacokinetic profile
Day 30

Pharmacokinetic parameters such as the maximum observed plasma concentration (Cmax), time to Cmax (Tmax), the area under the plasma concentration versus time curve from time 0 (predose) to the last quantifiable time point (AUClast), AUC from time 0 (predose) to time infinity (AUCinf), the elimination rate constant (λz), and terminal elimination half-life (t½) will be calculated

The area under the plasma concentration time curve, from time 0 to the last measurable concentration non-zero, for single-state pharmacokinetics on Day 1 of deflazacort and 21-desacetyl-DFZ, the active metabolite
Day 1, Day 8
The area under the plasma concentration versus time curve over the final dosing interval for steady state pharmacokinetics on Day 8 of deflazacort and 21-desacetyl-DFZ, the active metabolite
Day 8

The area under the plasma concentration versus time curve over the final dosing interval for steady state pharmacokinetics on Day 8 of deflazacort and 21-desacetyl-DFZ, the active

Hepatic impairment on the pharmacokinetics (PK) of deflazacort in subjects with moderate hepatic impairment including the area under the plasma concentration time curve, from time 0 to the last measurable non-zero concentration.
1 day
Renal impairment on the pharmacokinetics (PK) of deflazacort in subjects with end-stage renal disease including the area under the plasma concentration time curve, from time 0 to the last measurable non-zero concentration.
1 day
Number, frequency, and severity of adverse events
3 years

Long-term safety and tolerability will be characterized by the number, frequency, and severity of adverse events from Day 1 through End of Study or Early Termination.

Effects of CYP3A4 inhibitors and inducers on the pharmacokinetics (PK) of deflazacort in healthy subjects including the area under the plasma concentration time curve, from time 0 to the last measurable non-zero concentration.
10 days and 4 days

Secondary Endpoints

Treatment emergent AEs and SAEs
Day 30
Changes from baseline values for lab
Day 30
Changes from baseline values for ECG
Day 30
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeOTHER

Treatment Arms

ArmTypeDescription
Deflazacort, fastedEXPERIMENTAL36mg of Deflazacort with 240 ml of room-temperature, non-carbonated water in Fasted state.
Deflazacort, high-fat mealEXPERIMENTAL36mg of Deflazacort with 240 ml of room-temperature, non-carbonated water with high fat meal served 30 minutes prior to dosing.
Deflazacort, crushed, fastedEXPERIMENTAL36mg of Deflazacort crushed and mixed with apple sauce.
Deflazacort alternate strength,fastedEXPERIMENTALInvestigational Formulation Deflazacort tablet (6 X 6mg).
Deflazacort suspension with apple juiceEXPERIMENTALDeflazacort oral suspension (36mg) mixed with 100ml apple juice in fasted state.
DeflazacortEXPERIMENTALThis is an open label and single period study , dosed with 0.9mg/kg Deflazacort.
Hepatic ImpairmentEXPERIMENTALEight (8) subjects with moderate hepatic insufficiency (a score of 7 to 9, on the Child-Pugh scale) will receive one 18 mg dose of deflazacort
Healthy VolunteerEXPERIMENTALEight (8) healthy subjects. Subjects will be matched for age \[± 15 years\], BMI \[± 15 %\], and gender \[1:1\] to the subjects in the moderate hepatic impaired cohort; will receive 18 mg dose of deflazacort
Renal ImpairmentEXPERIMENTALEight (8) subjects with ESRD on HD will receive one 18 mg dose of deflazacort.
Healthy VolunteersEXPERIMENTALEight (8) healthy subjects with estimated creatinine clearance (CLcr) ≥ 90 mL/min. Subjects will be matched for age \[± 15 years\], BMI \[± 15 %\], and gender \[1:1\] to the subjects in the ESRD cohort. Subjects will receive one 18 mg dose of deflazacort.
Cohort A Deflazacort and RifampinEXPERIMENTALSubjects will recieve one 18 mg dose of deflazacort on Day 1, Period 1 and Day 10, Period 2; cohort A. Subjects will receive once daily dosing of rifampin on Day 1, Period 2 through Day 10, Period 2.
Cohort B Deflazacort and ClarithromycinEXPERIMENTALSubjects will recieve one 18 mg dose of deflazacort on Day 1, Period 1 and Day 4, period 2; cohort B. Subjects will receive twice daily dosing of clarithromycin on Day 1, Period 2 through Day 4, Period 2.

Interventions

NameTypeDescription
DeflazacortDRUG -
Deflazacort and rifampinDRUGDeflazacort, a glucocorticoid with anti-inflammatory and immunosuppressive effects, is used in treating a variety of diseases. Pharmacologically it is an inactive pro-drug which is metabolized completely and rapidly to the active drug 21-desacetyldeflazacort (21 desacetyl-DFZ). The elimination of this metabolite is primarily via the urine in humans. Its potency is approximately 70 to 90% of prednisone and 6 mg of deflazacort has approximately the same anti-inflammatory potency as 5 mg of prednisolone or prednisone. Rifampin is a potent inducer of drug metabolism by inducing a variety of hepatic and intestinal CYP enzymes, especially CYP3A4. Rifampin is a semi-synthetic antibiotic.
Deflazacort and ClarithromycinDRUGDeflazacort, a glucocorticoid with anti-inflammatory and immunosuppressive effects. It is an inactive pro-drug which is metabolized completely and rapidly to the active drug 21 desacetyl-DFZ. The elimination of this metabolite is primarily via the urine in humans. Its potency is approximately 70 to 90% of prednisone. Clarithromycin is a semi-synthetic macrolide antibiotic. Clarithromycin is active in vitro against a variety of aerobic and anaerobic gram-positive and gram-negative bacteria as well as most mycobacterium avium complex (MAC) bacteria. Additionally, the 14-OH clarithromycin metabolite also has clinically significant antimicrobial activity. Clarithromycin is indicated for the treatment of mild to moderate infections such as pharyngitis/tonsillitis.
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy males and females ≥ 18 and ≤ 55 at the time of screening. * Body mass index (BMI) ≥ 18.0 and ≤ 32.0 kg/m2, inclusive, at screening and Day -1. * Women of nonchildbearing potential, defined as tubal ligation, hysterectomy, postmenopausal (amenorrhea for \> 1 year; confi...

Countries:United States
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Frequently asked questions about Deflazacort

What is Deflazacort used for?

Deflazacort is a small molecule being developed by PTC Therapeutics for use in Duchenne Muscular Dystrophy, as well as in studies involving healthy volunteers and patients with renal or hepatic impairment. It is currently in Phase 1 clinical development.

Who makes Deflazacort?

Deflazacort is being developed by PTC Therapeutics, Inc., a biopharmaceutical company traded on NASDAQ under the ticker symbol PTCT. The company is conducting Phase 1 clinical trials to evaluate the drug's pharmacokinetics in various patient populations.

What phase is Deflazacort in?

Deflazacort is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The ongoing trials are focused on evaluating its pharmacokinetics and effects in healthy volunteers and patients with hepatic or renal impairment.

What clinical trials is Deflazacort in?

Deflazacort has been studied in four completed Phase 1 clinical trials: NCT02286609 (hepatic impairment), NCT02286622 (renal impairment), NCT02286635 (drug interactions with rifampin and clarithromycin), and NCT02485431 (food effect and bioavailability). These trials enrolled a total of 103 participants.

Is Deflazacort the same as Emflaza?

Deflazacort is also known by the brand name Emflaza. It is a corticosteroid used to treat Duchenne Muscular Dystrophy. The drug is being studied in Phase 1 trials to understand its pharmacokinetics in different populations, including those with organ impairment.